20749999872

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{7583}}^1$

素因数の和:8118

約数の個数: 144

約数和(自身を含む): 63246919680

約数和(自身を除く): 42496919808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 509, 672, 768, 896, 1018, 1344, 1527, 1792, 2036, 2688, 3054, 3563, 4072, 5376, 6108, 7126, 7583, 8144, 10689, 12216, 14252, 15166, 16288, 21378, 22749, 24432, 28504, 30332, 32576, 42756, 45498, 48864, 53081, 57008, 60664, 65152, 85512, 90996, 97728, 106162, 114016, 121328, 130304, 159243, 171024, 181992, 195456, 212324, 228032, 242656, 318486, 342048, 363984, 390912, 424648, 456064, 485312, 636972, 684096, 727968, 849296, 912128, 970624, 1273944, 1368192, 1455936, 1698592, 1941248, 2547888, 2736384, 2911872, 3397184, 3859747, 5095776, 5823744, 6794368, 7719494, 10191552, 11579241, 13588736, 15438988, 20383104, 23158482, 27018229, 30877976, 40766208, 46316964, 54036458, 61755952, 81054687, 92633928, 108072916, 123511904, 162109374, 185267856, 216145832, 247023808, 324218748, 370535712, 432291664, 494047616, 648437496, 741071424, 864583328, 988095232, 1296874992, 1482142848, 1729166656, 2593749984, 2964285696, 3458333312, 5187499968, 6916666624, 10374999936, 20749999872]

約数ペア:

[(1, 20749999872), (2, 10374999936), (3, 6916666624), (4, 5187499968), (6, 3458333312), (7, 2964285696), (8, 2593749984), (12, 1729166656), (14, 1482142848), (16, 1296874992), (21, 988095232), (24, 864583328), (28, 741071424), (32, 648437496), (42, 494047616), (48, 432291664), (56, 370535712), (64, 324218748), (84, 247023808), (96, 216145832), (112, 185267856), (128, 162109374), (168, 123511904), (192, 108072916), (224, 92633928), (256, 81054687), (336, 61755952), (384, 54036458), (448, 46316964), (509, 40766208), (672, 30877976), (768, 27018229), (896, 23158482), (1018, 20383104), (1344, 15438988), (1527, 13588736), (1792, 11579241), (2036, 10191552), (2688, 7719494), (3054, 6794368), (3563, 5823744), (4072, 5095776), (5376, 3859747), (6108, 3397184), (7126, 2911872), (7583, 2736384), (8144, 2547888), (10689, 1941248), (12216, 1698592), (14252, 1455936), (15166, 1368192), (16288, 1273944), (21378, 970624), (22749, 912128), (24432, 849296), (28504, 727968), (30332, 684096), (32576, 636972), (42756, 485312), (45498, 456064), (48864, 424648), (53081, 390912), (57008, 363984), (60664, 342048), (65152, 318486), (85512, 242656), (90996, 228032), (97728, 212324), (106162, 195456), (114016, 181992), (121328, 171024), (130304, 159243)]